CBD Promotes Heart Cell Regeneration and Reduces Heart Attack Damage in Mice
In a mouse model of heart attack, CBD administration promoted cardiomyocyte proliferation, reduced infarct size, and restored cardiac function through a molecular pathway involving miR-143-3p and the cannabinoid receptor 2.
Quick Facts
What This Study Found
Systemic CBD administration (10 mg/kg) in post-MI mice increased cardiac regenerative ability, reduced infarct size, and restored cardiac function. CBD downregulates miR-143-3p through CB2, upregulating Yap and Ctnnd1 to promote cardiomyocyte proliferation. Blocking CB2 eliminated the effect.
Key Numbers
10 mg/kg CBD dose; miR-143-3p significantly downregulated; Yap and Ctnnd1 upregulated; CB2 receptor required for effect; demonstrated in both neonatal and adult cardiomyocytes.
How They Did This
MI models in adult mice via coronary artery ligation, treated with or without CBD (10 mg/kg). In vitro validation in neonatal cardiomyocytes. Molecular pathway analysis with receptor blockade experiments.
Why This Research Matters
Adult mammalian hearts have almost no regenerative capacity. This study identifies a specific molecular pathway through which CBD can reactivate cardiomyocyte proliferation.
The Bigger Picture
Heart disease is the leading cause of death globally. If CBD can reactivate cardiomyocyte proliferation through a druggable pathway, it opens new directions for cardiac repair research.
What This Study Doesn't Tell Us
Animal study with no human data. Mouse cardiac biology differs from human. Single dose level tested.
Questions This Raises
- ?Does this pathway operate in human cardiomyocytes?
- ?Could CB2-selective agonists achieve the same cardiac regeneration without broader CBD effects?
Trust & Context
- Key Stat:
- CBD reactivated cardiomyocyte proliferation in adult mouse hearts
- Evidence Grade:
- Well-designed mechanistic animal study with pathway validation, but no human data.
- Study Age:
- 2024 publication
- Original Title:
- Cannabidiol represses miR-143 to promote cardiomyocyte proliferation and heart regeneration after myocardial infarction.
- Published In:
- European journal of pharmacology, 963, 176245 (2024)
- Authors:
- Ren, Zhongyu, Liu, Yining, Cai, Ao, Yu, Yang, Wang, Xiuxiu, Lan, Lan, Guo, Xiaofei, Yan, Hong, Gao, Xinlu, Li, Hanjing, Tian, Yanan, Ji, Haoyu, Chen, Hongyang, Ding, Fengzhi, Ma, Wenya, Wang, Ning, Cai, Benzhi, Yang, Baofeng
- Database ID:
- RTHC-05648
Evidence Hierarchy
Frequently Asked Questions
Can CBD help heal a damaged heart?
In mice, CBD promoted heart cell regeneration and reduced damage after induced heart attacks through a specific molecular pathway involving the CB2 receptor. This is a preclinical finding not tested in humans.
How does CBD affect heart cells?
CBD downregulates a microRNA called miR-143-3p through the cannabinoid receptor 2, allowing two proteins (Yap and Ctnnd1) to promote heart cell proliferation. Blocking CB2 eliminated this effect.
Read More on RethinkTHC
- CBD-oil-quality-guide
- anxiety-medication-after-quitting-weed
- cannabis-chemotherapy-nausea
- cannabis-chronic-pain-research
- cannabis-epilepsy-CBD-Epidiolex
- cbd-anxiety-research-evidence
- cbd-for-weed-withdrawal
- cbd-vs-thc-difference
- medical-benefits-of-cannabis
- quitting-weed-before-surgery
- quitting-weed-medication-interactions
- quitting-weed-pregnancy
- quitting-weed-pregnant
- seniors-older-adults-cannabis-risks-medications
- weed-breastfeeding-THC-breast-milk
Cite This Study
https://rethinkthc.com/research/RTHC-05648APA
Ren, Zhongyu; Liu, Yining; Cai, Ao; Yu, Yang; Wang, Xiuxiu; Lan, Lan; Guo, Xiaofei; Yan, Hong; Gao, Xinlu; Li, Hanjing; Tian, Yanan; Ji, Haoyu; Chen, Hongyang; Ding, Fengzhi; Ma, Wenya; Wang, Ning; Cai, Benzhi; Yang, Baofeng. (2024). Cannabidiol represses miR-143 to promote cardiomyocyte proliferation and heart regeneration after myocardial infarction.. European journal of pharmacology, 963, 176245. https://doi.org/10.1016/j.ejphar.2023.176245
MLA
Ren, Zhongyu, et al. "Cannabidiol represses miR-143 to promote cardiomyocyte proliferation and heart regeneration after myocardial infarction.." European journal of pharmacology, 2024. https://doi.org/10.1016/j.ejphar.2023.176245
RethinkTHC
RethinkTHC Research Database. "Cannabidiol represses miR-143 to promote cardiomyocyte proli..." RTHC-05648. Retrieved from https://rethinkthc.com/research/ren-2024-cannabidiol-represses-mir143-to
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.